Objective To explore the efficacy and safety of the Automatic ligation of hemorrhoids(RPH) with external hemorrhoidectomy surgery on treatment of mixed hemorrhoids.Methods 120 patients with mixed hemorrhoids meeting the inclusion criteria were randomly divided into 2 groups,60 patients in each group.In the treatment group,RPH combined with external hemorrhoid resection was performed,and the control group was treated with mixed hemorrhoid external resection.Comparison:(1)Improvement of symptoms such as operation time,hospitalization time and preoperative period,3 and 7th day after operation,ana...